First image is a low german house (also called ‘Westphalian farmhouse’ or ‘Low saxon house’)
the construktion is called ‘zwei Ständerhaus’ (two post-farmhouse), build in the late 1750ies.
The second image is the ‘von Stael’ manor house in Sutthausen near Osnabrück. It was teared down in the 1890’s.
The 3d image is inspired by an old paintig.